Handle for detachable knife blades



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i R. WHITCOMB ET AL HANDLE EOE DETACHABLE KNIFE BLADES Filed June 25. 1922 Dem M H923, m?

R. wHlTcoMB ET Al.

HANDLE FOR DETAGHABLE KNIFE BLADES Filed June 23. y1922 2 Sheets-Sheet 2 ATTORNEYS Patented Dee, lill, H923.,

NETE@ SFL-YFS RUSSELL WHTCOMB, 0F NEW YORK, N. Y., AND FREDERICK GOERTZ, 0F NEWT' g innataaaranr naaien?,

NEW JERSEY, ASSXGNGRS T0 AUGUST GOEE/IZ @c C0., A CORPORATION 0F NEW JERSEY.

HANDLE FOR IDE'ECHABLE KNIFE BLADES.

.Application filed June 23, 1922. Serial No. 50,1t02l To all 'who/m, t maf/y concern:

Be it known that we, RUSSELL `WHrrooM States of New York and New Jersey, re

spectively, have invented certain new and useful lm rovements in Handles for Detachable ltnife Blades; and we do hereby declare the followinv to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a' part-of this speelfication.

l'Fh-is invention relates, generally, to improvements in knife handles; and the invention has reference, more particularly, to an improved novel handle and 'holder which serves to detachably and adjustably hold a razor blade, to thereby furnish a convenient cutting implement for various purposes.

The invention has for its several objects; first, to provide a novel holder orhandle having means whereby a razor blade, such, for example, as that of4 the Gillette type, may beadjustably interlocked therewith in various positions so as to expose and project the cutting edges to the best advantage; second, to provide such a holder or handle not only with means for adjustably attaching the blade in operative positlons, but also to provide storage or carrying means for extra blades reserved for future service; third, to provide in such a handle or holder means for strongly interlockingits parts together, so as not only 'to firmly and efficiently grip and reenforce the thin blades, but so as to provide a sure, safe and comfortable hand grip for the user when manipulating the knife; fourth, to provide adjustable cover means for enclosing the edge of the operative blade, when the same is not in use, and also, subject to its adjustment relative to the operative blade to provide a lguide or control against false cutting, slipping, or over-deep penetration of the blade when making incisions..

Other objects of this invention, `not at this time more particularly enumerated, will be clearly understood from the following' detailed description of the same.

The invention is clearly illustrated in the accompanying drawings, in which Figure 1 is a side or face view of the handle or holder with operative blade adjusted to one position, but protected by the adjustable guard, which is shown in closed position; Figure 2 is a similar view, showing the adjustable guard retracted to o en position, to expose an edge of the operative blade j ready for use; Figure 3 is a longitudinal vertical section, taken on line 3 3 in Figure 2; Figure 4 is a side or face view showingthe method of removing the interlocking guards from the main body portions of the handle or holder to permit vseparation of the -latter for adjustment, attachment' or insertion of the blades; Figure 5 is a simi-l lar view showing the manner of separating said main body portions of the'handle or holder; Figure 6 is a tranverse section, taken on line G-yin Figure 1, and drawn on an enlargedsc-ale; Figure 7 is a fragmentary section, enlarged, showing the stop of the back guard member; and Figure 8 is a similar view showing the stop of theadjustable guard when in closed position; Figures 9 and 10 are respectively end views of the back guard member and 'the adjustable guard; and Figure 11 is a fragmentary side face View of the handle ,illustrating another way of mounting the operative blade to provide four exposed cutting points or corners, this view showing the parts onl a somewhat reduced scale.

SimilarA characters of reference lare employed in all of the above described views, to indicate 'corresponding parts.

Referring now to said drawings, the novel construction of handle or holder comprises, a pair of main body portions 12 and 13, which are formed out of dat sheet metal, such as steel, brass or the like, and which are placed face to face, and preferably hingedly secured together at their lower ends by a pivotal connection, such as the rivet 14,- although it is not essential, nor do we -limit ourselves to a pivoted arrangement,

since `such connection may be omitted if desired. Each body portion 12 and 13 is provided at or adjaoent"to its back edge, and longitudinally parallel to the latter, with an outwardly pressed bead or longitudinal rib 15, preferably substantially halt round in cross section. In like manner, each body portion 12 and 13 is providedat or adjacent to its front edge, and longitudinally parallel thereto, with a similar outwardly pressed bead or longitudinal rib 16, also preferably substantially half roundin cross section. The front ed e of each body portion 12 and 13, towar its free end is cut away, as 'at 17, to expose one cutting edge of bla-de .when the same is mounted in operative relation to and between the free ends of said body portions. The blade shown in the drawing is a razor blade 18 of theGillette type, which is provided with double edges 18 and 18, and is further provided wlth the centrally disposed lon 'tudin'ally alined holes or openings 19, alt ough it will be understood, that any blade having either a sin le or double edge, and having centrally and longitudinally disposed holes or slots ma be employed.

he main body portlon 12 is proi'idedj'f with a plurality of inwardly projected centrally and longitudinally disposedstuds-20- e-xtendin downwardly fromy its .tree end preferaby spaced to correspond to' the spacing of the holes or openings of the blade 18. As shown in the drawings there are five of such studs 20, although more or less may be provided. The main bodyportion 13 is providedwith a plurality of similarly disposed perforations 21 to match said studs 20. The holes or openings 19 of the blade 18 may be selectively engaged with a desired group of said studs 20 to thereby position the blade in any one of, several longitudinally adjusted positions, as is indicated in Figures 2, 4 and 5, to thereby expose more or less of a cutting edge of the. blade at the outer front edge of the holder. When the j blade is thusl arranged in a desired position,

the body portions 12 and 13 are closed together so that the free ends of the studs 20, beyond the'blade engaged therewith, enter the perforations 21 of the body portion 13, thus interlocking the blade 18 between the inner faces of the body portions 12 and 13 against lateral, longitudinal or turning displacement. The reference character 22 in- I dicates a baok guard and body portion interlocking device of substantially tubular shape with a longitudinal openingv or slot 23 at one side, and a stop lug 24 which is benttransversely across the lower open end of the back guard, so asto engage the lower 'end of the closed body portions 12 and 13.

The upv er end of the back guard is open. In app ying the y backguard the same is slipped telescopically over` the beads 15 of the body portions 12.and 13 so as to straddle the same, thus not only interlocking the latter against separation, but also, by reason of its rounded. contour, providing a comfortable grip when the handle is held in the hand of the user.

The reference character'25 -indicates an adjustable guard .which is adapted'to be associated with the front edges of" the body portions 12 and 13. Thisfront or ladjustable guard is also of substantially tubular shape, with a longitudinal opening or slot 25 extendingalong one side, and a stop lug 26 at its lower end which is bent transverse-ly there-across. The adjustable guardthe knife is not'fin use, and rendering it :perfectly safe and convenient tol carry the -knife about upon the person, in pockets, or .the like.

of saidadjustable guard, the lower portiony of the front edges of the body portions 12 To determine the closed position and are cut away for a suitable distance, so as to provide a properly disposed stop shoulder 27, which is engageable by the stop lug 26. For convenience in manipulating, and to `prevent the vfingers slipping away therefrom, and into possible, injurious contact with the cutting edge of the blade 18, the exterior surface of the adjustable guard may be roughened by knurling or similarly treating the surface. To expose the cutting edge of the blade 18 for use. the adjustable guard is merely slid downward, as shown in Figure 2. Another purpose served by the adjustable guard 25 is vto provide a guide for governing the depth of a direct cut or incision. To this end the guard may be slipped down to any point intermediate and up to its fully opened position, thereby varying the inclination of an imaginary liney upper end of the guard furnish guiding points limiting the depth of penetration of the blade, which will be understood from an inspection of said Figure 2 of the drawings. V

Another advantage our novel construction lrais of handle or holder for cutting blades provides is that the same is also designed to furting'blades, comprising a air of body porcutting position the other of said body portions having a coi-responding plurality ot perfcrations to receive the ends of said studs, and means slidably cooperating with the longitudinal edges of said body portions tol operatively interlock the same together in holding relation to the cutting blade, one of said latter means being longitudinally adjustable to a blade exposing or enclosing position.

3. A handle for detachable perforate cutting blades, comprising a pair of bod por-- tions arranged face to face, one of sai body portions having adjacent toits free end a plurality of inwardl projecting studs with which a perforate blade may be selectively engaged'for variously adjusted cutting position, the other of said body portions having a. corresponding pluralit of perforations to receive the ends of sai studs, and means slidably cooperating with the longitudinal edges-of said body portions to operatively interlock the same together'in holdin relation to the cutting blade, one of sai latter means being longitudinally adjustable to a blade-exposing or enclosing position, said body portions when closed together providing a storage space for extra cutting' blades below the operative blade engaging studs.

4. A handle for detachable perforate cutting blades, comprising a pair of bod portions arranged face to face, one of sai body portions having adjacent to its free end a plurality of inwardly projecting studs with which a perforate blade may be selectively engaged for variously adjusted cutting position, the other of said body portions having a corresponding plurality of perforations to receive the ends of said studs, and ymeans slidably cooperating with the longitudinal edges of said body 'portions to operatively interlock the same together in holding relation to the cutting blade, said body portions when closed together providing a storage space for extra cutting blades below the operative blade engaging studs, one of said body portions having additional studs projecting into said storage space to engage and hold the blades stored therein.

5. A handle for det-achable perforate cutting blades, comprising a pair of bod portions arranged face to face, one of sai body v portions having. adjacent to its free end a plurality of inwardly rojecting studs with which a erforate bla. e may be selectively engaged or variously adjusted cutting positermo? tion, the other of said body portions having a corresponding pluralit of perforations to receive the ends of saidystuds, and means slidably cooperating with the longitudinal edges of said body portions to operatively interlock the same together in holding relation to the cutting blade, one of said latter means being longitudinally adjustable to a blade exposing or enclosing position, said body portions when closed together providing a storage space for extra cutting blades below the 'operative blade engaging studs, one of said body ortions having additional studs projecting into said storage space to engage and hold the blades stored therein.

6. A handle for detachable perforatecutting blades, comprising a pair of substantially flat body portions arranged face to face, the longitudinal edge portions of said expose a blade edge arranged between said body portions, one of said body portions having adjacent to its free end a. plurality of inwardly projecting studs with which a perforate blade may be selectively engaged for variously adjusted cutting position, the other of said body `responding plurality of perforations to receive the ends of said studs, a tubular longitudinally slotted back guard telescopically slidable over the beads of the rear edges of said body portions, and a tubular longitudinally `slotted adjustable guard telescopically slidable over the beads of the forward edges of said body portions, said latter guard being longitudinally adjustable Ato uncover or enclose the cutting edge of a blade operativelly attached to said handle.

7. handle for detachable perforate cuttin blades, comprising a pair of substantia y flat body ortions arranged' face to face, the longitu inal edge portions of said body portions having longitudinal outwardly pressed beads, each bod portion being cut away at its upper forwar edge to expose a blade edge arranged between said body portions, oneof said body portions-having adjacent to its free end a plurality of inwardly projecting studs with which a perforate blade may be selectively engaged for variousl adjusted cutting position, the othergo sai-d body portions having a corresponding 4plurality of perforations to re.- ceive the ends of said studs, a tubular longitudinally slotted back guard telesco ically slidable over the beads of the rear e ges of said body portions, and a tubular longitudinally slotted adjustable ard telescopically slidable over the beads o the forward ed es of said -bodyl portions, said latter guard eing longitudinally adjustable to uncover or enclose the cutting edge of a blade operportions'having a corj ammo? i @tively attocheoi to saidy handle, said body set forth above we have hereunto set our portions when closed together: providing o hands this 20th day of Ilmo 1922.

storage space for extran cutting blades below RUSSELL WHETCMB.

the operative blade engaging studs and one i3 of seid body portions having oiiditionei FREDERICK GOERTZ studsprojecting into said stom e space Ito Wimesses: enege am? hold the blades store therein., @momie D. RIOHM n testimony, that we claim the invention Fmmm C FZEL 

